Practical Implementation Customer management and payment platform service using Bluetooth beacon

な

な⬾䒂㓺

゚䆮㦚 ㌂㣿䞲 ἶṳ ὖⰂ㢖

ἆ㩲

䝢

䝢⨁䙒

㍲

㍲゚㓺

e-mail : [email protected]*, [email protected]**, [email protected]***, [email protected]****

G

Practical Implementation Customer management and payment platform

service using Bluetooth beacon

Hyug-Jun Ko*, Seong-Soo Han**, You-Boo Jeon***, Chang-Sung Jeong**** *Dept. of Visual Information Processing, Korea University

**Dept. of Division of Liberal Studies, Kangwon National University ***Dept. of Computer Software Engineering, Soonchunhyang University

****Dept. of Electrical Engineering, Korea University 殚 檃檃 㧎䎆⎍ ㌗Ệ⧮㦮 ⹲㩚㦒⪲ 㡾⧒㧎 㑒䞧ⴆ㦖 Ṛ䘎 ἆ㩲㢖 ṯ㦖 ┺㟧䞲 䗮㧊✺㦚 㰖㤦䞮Ⳇ ἆ㩲 ⹿㔳㠦 㧞㠊㍲ ┺㟧䞲 ⹿⻫✺㦚 㩲Ὃ䞮ἶ 㧞┺. 䞲䘎, ἓ㨗 㤆㥚㠦 㧞⓪ ┺㟧䞲 㡾⧒㧎 㟇✺㦖 O2O(Online-to-Offline) ㍲゚㓺⯒ ₆⹮㦒⪲ 㡺䝚⧒㧎 ⰺ㧻㠦☚ 㰚㿲䞮ἶ 㧞┺. ⹮Ⳋ, ₆㫊㦮 㡺䝚⧒㧎 ㌂㠛㧻㦚 Ṗ㰚 ㏢㌗Ὃ㧎✺㦖 ICT 㩗㣿ὒ 䢲㣿㦚 㥚䞲 Ṳ⹲㠦 㠊⩺㤖㦚 ἀἶ 㧞㦚 ㈦Ⱒ 㞚┞⧒ ἶṳ ὖⰂ㢖 ὧἶ ❇㠦㍲☚ ㌗╖㩗㧎 㡊㎎⪲ 㧎䞮㡂 㡺䝚⧒㧎 ㌂㠛㧻㦮 㑮㧋㦖 㩦㩦 㭚㠊✲⓪ 㔺㩫㧊┺. 㧊⩂䞲ٻⶎ㩲⯒ٻ䟊ἆ䞮₆ٻ㥚䞮㡂 ⽎ ⏒ⶎ㠦㍲⓪ な⬾䒂㓺 ゚䆮 ₆㑶㦚 ㌂㣿䞮㡂 ἶṳ ὖⰂ㢖 ὧἶ ❇㧊 Ṗ⓻䞮Ⳇ, 㡺䝚⧒㧎 ㌂㠛㧻㠦☚ 㩗㣿㧊 Ṗ⓻䞲 ⹿⻫㦚 㩲㞞䞲┺. 㩲㞞 ⹿⻫㦚 䐋䞮㡂 㡺䝚⧒㧎 ⰺ㧻㠦㍲☚ 㡾⧒㧎 㑒䞧ⴆ㻮⩒ ὖⰂṖ Ṗ⓻䞮┺. 1. 昢嵦 㧎䎆⎍㦮 ⹲㩚㦖 ┺㟧䞲 ⿚㟒㠦㍲ 䡗㔶㦚 Ṗ㪎㢪┺. ⁎ 㭧㠦㍲☚ 㧎䎆⎍㦚 䢲㣿䞲 㡾⧒㧎 㑒䞧ⴆ㦖  ỿ 䞲 ㎇㧻㦚 ⽊㧊ἶ 㧞㦒Ⳇ, ἆ㩲 ⹿㔳㠦 㧞㠊㍲☚ Ṛ 䘎 ἆ㩲㦮 ╖䚲㩗㧎 㓺Ⱎ䔎 䗮㧊㦮 ㌂㣿㦚 ゚⫅䞮㡂 ┺㟧䞲 ⹿㔳㦚 㰖㤦䞮ἶ 㧞┺. ⡦䞲 㧎䎆⎍ 㑒䞧ⴆ㠦 ㍲ ゚⫅♲ ἆ㩲 ⿚㟒⓪ 䄺┺⧖ ㌂㠛㡗㡃㦚 䢫⽊䟊 Ṗ ἶ 㧞┺. 䞲䘎, ἓ㨗 㤆㥚㠦 㧞⓪ ┺㟧䞲 㡾⧒㧎 㟇✺ 㦖 㡾⧒㧎㠦㍲㦮 㩲䛞 ⹥ ㍲゚㓺 㩫⽊Ỗ㌟ὒ ἆ㩲, ⁎Ⰲἶ 㡺䝚⧒㧎㠦㍲㦮 㩲䛞 㑮⪏㧊 䢒䞿♲ ㌞⪲㤊 ㌗Ệ⧮ ⹿㔳㧎 O2O(Online-to-Offline) ㍲゚㓺⯒ ₆⹮㦒 ⪲ 㡺䝚⧒㧎ٻ ⰺ㧻㠦☚ٻ 㰚㿲䞮Ⳇڇٻ ㌂㠛ٻ 㡗㡃㦚ٻ 㩦㩦ٻ 䢫╖䟊ٻ⋮Ṗἶٻ㧞┺. 㧊㠦 ⹮䞮㡂 㡺䝚⧒㧎 ㌂㠛㧻㦚 Ṗ㰚 ㏢㌗Ὃ㧎✺㦖 ICT 䢲㣿㦚 㥚䞲 Ṳ⹲㠦 㠊⩺㤖㦚 ἀἶ 㧞㦚 ㈦Ⱒ 㞚┞⧒ ἶṳ ὖⰂ㢖 ὧἶ ❇㠦㍲☚ ㌗╖㩗㧎 㡊㎎⪲ 㧎䞮㡂 㡺䝚⧒㧎 ㌂㠛㧻㦮 㑮㧋㦖 㩦㩦 㭚㠊✲⓪ 㔺㩫㧊┺. 㧊✺㦮 ἶṳ 㥶䂮㢖 ἶṳ ὖⰂ 䢲☯㦖 な⪲⁎⯒ 䐋䞲 㡾⧒㧎 ὧἶ⋮ SNS 㠦 ❇ ⪳♲ 䣢㤦✺㠦Ợ ⶎ㧦 ὧἶ⯒ ⹲㏷䞮㡂 ἶṳ㦮 㥶㧛 㦚 㥶☚䞮⓪ ộ㧊 ╖⿖⿚㧊┺. ⁎⩂⋮ 㾲⁒ 㥚䂮₆⹮ GPS 㢖 な⬾䒂㓺 ゚䆮㦚 ₆⹮㦒⪲ 䞮⓪ ㌞⪲㤊 ⹿⻫ 㧊 ㌂㣿♮ἶ 㧞┺. 䔏㩫 㟇㦚 ㌂㣿䞮㡂 ἶṳ㧊 ㌂㠛 㧻 ⁒㻮㠦 㩧⁒䟞㦚 ➢ ὧἶ 䛎㓂(push)⯒ ⽊⌊㠊 ⰺ 㧻 ⹿ⶎ㦚 㥶☚䞮⓪ ⹿㔳㧊┺ډ ゚䆮(beacon)㦖ٻな⬾䒂 㓺⯒ٻ₆⹮㦒⪲ 䞮⓪ ⶊ㍶ ₆㑶⪲㖾 䗮㠊Ⱇ 㠜㧊 䔏㩫 㩫⽊⯒ 㰖㏣㩗㦒⪲ 㩚㏷䞶 㑮 㧞⓪ 㩖㩚⩻ ⶊ㍶ 䐋㔶 ₆㑶㧊┺. 㾲⁒ な⬾䒂㓺⓪ ⶊ㍶ な⬾䒂㓺 㧊㠊䙆ὒ 㧦☯㹾 ⌊ な⬾䒂㓺 䢲㣿 ⹥ 㓺Ⱎ䔎䙆 ❇㠦㍲ 䢲㣿㧊 ⓮㠊⋮ἶ 㧞₆ ➢ⶎ㠦 ゚䆮㦮 䢲㣿☚⓪ ▪ ⏨㞚㰞 ộ 㦒⪲ 㡞㌗♲┺. ⽎ ⏒ⶎ㠦㍲⓪ ₆㫊㦮 㡺䝚⧒㧎 ㌂㠛㧻㦚 Ṗ㰚 ㏢ ㌗Ὃ㧎✺㦮 㠊⩺㤖㦚 䟊ἆ䞮₆ 㥚䞮㡂 㧒⹮ ⰺ㧻㠦㍲ ☚ 㡾⧒㧎 ⰺ㧻ὒ ṯ㧊 ἶṳٻὖⰂ㢖ٻὧἶ⯒ٻ䞶ٻ㑮ٻ㧞 ⓪ ⹿⻫㦚 㩲㞞䞮ἶ㧦 䞲┺. 㩲㞞 ⹿⻫㦖 BLE ゚䆮

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₆㑶㦚ٻ ㌂㣿䞮㡂ٻ ┾㑲ٻ ⹿ⶎὒٻ 䣢㤦㦚 ⋮⑚㠊 ὖⰂ䞶 㑮 㧞⓪ ⹿㔳㧊┺ډ ⡦䞲, ἶṳὒ ⰺ㧻 Ṛ㠦 ㌗䢎㧧㣿 㦚 䐋䞮㡂 ⰺ㧻㠦㍲⓪ ἶṳ㦚 㧎㔳䞶 㑮 㧞ἶ ἶṳ㦖 ⰺ㧻㦚 㧎㔳䞶 㑮 㧞⓪ ⹿㔳㦮 ㍲゚㓺⯒ ㍺Ἒ䞮ἶ㧦 䞲┺. 㡺䝚⧒㧎 ⰺ㧻㠦㍲☚ 㡾⧒㧎 㑒䞧ⴆ㻮⩒ ἶṳ 㦚 䣢㤦 ⹥ ゚䣢㤦㦒⪲ ῂ⿚䞮㡂 ὖⰂ䞶 㑮 㧞┺. 㩲 㞞 䝢⨁䙒㦚 䐋䞮㡂 㡺䝚⧒㧎 ㌂㠛㧻㦚 㤊㡗䞮⓪ ㏢ ㌗Ὃ㧎✺☚ 䘎Ⰲ䞮Ợ ἶṳ ὖⰂ㢖 ὧἶ ❇㠦 ㌂㣿䞶 㑮 㧞㦚 ộ㦒⪲ ₆╖䞲┺. 2. 分分崮 櫶割 2.1. 䞧Ệ䝚Ⰶ䔎(Fingerprint) ⹿㔳㦮 㥚䂮 㿪㩗 䞧Ệ䝚Ⰶ䔎 ⹿㔳㦖 㥚䂮 㿪㩗㦚 㥚䞲 㩫⽊⪲ 㔶䢎 Ṛ㎃ὒ 㭒㥚㦮 䢮ἓ 㩫⽊⯒ 䢲㣿䞮⓪ ⹿㔳㦒⪲㖾 ⶊ ㍶ 㔶䢎 ₆⹮㦮 㥚䂮 㿪㩗 㔲㓺䎲㠦㍲ Ṗ㧻 Ⱔ㧊 ㌂ 㣿♮⓪ ⹿㔳㧊┺. 䁷㩫 㥚䂮 ╖㌗ ὋṚ㠦 ₆㭖㩦㦮 㥚䂮 㩫⽊⯒ ◆㧊䎆⻶㧊㓺㠦 㩖㧻䞲 ⛺ 㥚䂮 㩫⽊㢖 䞾℮ AP(Access Point)⪲⿖䎆 㓺Ⱎ䔎䙆㠦 ☚╂䞲 㔶䢎 ㎎₆⯒ 䁷㩫䞮㡂 䟊╏ 㩫⽊⯒ 㩖㧻䞲┺. 㧊 㧧㠛㦚 ⳾✶ ₆㭖㩦㠦㍲ 㑮䟟䞲┺. ◆㧊䎆⻶㧊㓺㠦 ₆㭖㩦㠦 ╖䞲 㩫⽊⯒ ⳾⚦ 㩖㧻䞲 ⛺ 㓺Ⱎ䔎䙆㦚 Ṗ㰚 ㌂㣿㧦Ṗ 䁷㩫 㥚䂮⯒ 㣪㼃䞮Ⳋ 㓺Ⱎ䔎䙆㠦 㑮㔶♮⓪ 㔶䢎 ㎎₆⯒ 䁷㩫䞲 䤚 ◆㧊䎆 ⯒ ㍲⻚⪲ 㩚㏷䞲┺. ㍲⻚㠦㍲⓪ ㌂㣿㧦⪲⿖䎆 㩚㏷ ♲ 㔶䢎㢖 ◆㧊䎆⻶㧊㓺㠦 㩖㧻♲ 㔶䢎㦮 㩫⽊⯒ ゚ ᾦ䞮㡂 ㌂㣿㧦㦮 㥚䂮⯒ 䕦┾䞮㡂 䟊╏ 㥚䂮 㩫⽊⯒ ㌂㣿㧦㦮 㓺Ⱎ䔎䙆㠦 㩚㏷䞲┺[2].

2.2. BLE(Bluetooth Low Energy) ゚䆮(Beacon)

゚䆮(beacon)㦖 ⁒ỆⰂ㠦 㧞⓪ 㓺Ⱎ䔎 ₆₆⯒ 㧦☯ 㦒⪲ 㧎㔳䞮㡂 䞚㣪䞲 ◆㧊䎆⯒ 㩚㏷䞶 㑮 㧞⓪ ⶊ㍶ 䐋㔶 㧻䂮⪲㖾 な⬾䒂㓺 ゚䆮(Bluetooth Beacon)㧊⧒ἶ ☚ 䞲┺. ⁒ỆⰂ ⶊ㍶ 䐋㔶㧎 NFC Ṗ 10cm 㧊⌊㦮 ⁒ ỆⰂ ⌊㠦㍲Ⱒ 㧧☯䞮⓪ ⹮Ⳋ, ゚䆮㦖 㾲╖ 50m ỆⰂ 㠦㍲ 㧧☯䞶 㑮 㧞┺. 㧊⩂䞲 ゚䆮 ₆㑶㦚 㧊㣿䞮Ⳋ 㑒䞧㎒䎆, 㦢㔳㩦, ⹫ⶒὖ, ⹎㑶ὖ, 㡗䢪ὖ, 㟒ῂ㧻 ❇ 㦚 ⹿ⶎ䞲 ἶṳ㦮 㓺Ⱎ䔎䙆㠦 䞶㧎 䈶䙆㧊⋮ ㌗㎎ ㍺ ⳛ ❇㦮 ◆㧊䎆⯒ 㩚㏷䞶 㑮 㧞┺[3]. ⡦䞲, ゚䆮㦖 ゚䆮 㔶䢎 ㏷㿲 ⻪㥚 㞞㦒⪲ 㓺Ⱎ䔎 䙆㦚 Ṗ㰚 ㌂⧢㧊 ✺㠊㡺Ⳋ 䔏㩫 ID Ṩ㦚 㩚╂䞲┺. 㧊⩂䞲 Ṩ㦚 㑮㔶䞲 㓺Ⱎ䔎䙆 㞶䝢Ⰲ䅖㧊㎮㦖 ㍲⻚⪲ 䟊╏ 㩫⽊⯒ 㩚╂䞲┺. ㍲⻚⓪ 㩚╂ ⹱㦖 ID Ṗ ❇⪳ ♲ ID 㧎㰖 䢫㧎䞲 䤚 ❇⪳♮㠊 㧞┺Ⳋ 䟊╏ ゚䆮㧊 ㍺䂮♲ 㥚䂮㠦 ╖䞮㡂 ㍺㩫♲ 㧊⻺䔎⋮ ㍲゚㓺 㩫⽊ ⯒ 㓺Ⱎ䔎䙆㦒⪲ 㩚㏷䞲┺[4]. 㧊⩂䞲 ゚䆮 ₆㑶㦚 ㌂㣿䞮㡂 㞶䝢㦖 2013 ⎚ 12 㤪 ⹎ῃ 㩚㡃 254 Ṳ 㞶䝢㓺䏶㠊㠦㍲ iBeacon ㍲゚㓺⯒ 㔲㧧䞮㡖┺. 㞶䝢㓺䏶㠊⯒ ⹿ⶎ䞲 ἶṳ㦖 iBeacon ㍲ ゚㓺⯒ 䐋䟊 iPhone 㧊 㰚㡊♲ 䎢㧊な 㡜㦚 㰖⋮Ṟ ➢ 䡚㨂 㧦㔶㧊 ㌂㣿䞮ἶ 㧞⓪ iPhone 㧊 㠛⁎⩞㧊✲ Ṗ ⓻䞲㰖, 㠊⟶䞲 ⽊㌗䕦ⰺ 㢋㎮㦚 㩲Ὃ⹱㦚 㑮 㧞⓪㰖 ❇㦮 㩫⽊⯒ 㩲Ὃ⹱㦚 㑮 㧞┺[5]. 3. 割笊 ⽎ ⏒ⶎ㠦㍲⓪ ῂ⁖㦮 Eddystone ⹿㔳㦚 䢲㣿䞮㡖ἶ, ⧒㯞⻶Ⰲ䕢㧊㦮 ゚䆮 Ⲫ㔲㰖⯒ 㧧㎇䞮₆ 㥚䟊㍲ ┺㦢 ὒ ṯ㦖 ⳛ⪏㠊 ㎡(command set)㦚 Ⱒ✺ 㑮 㧞┺. 㡞 ⯒ ✺㠊 Eddystone-URL 㧎 http://yoica.net/uid 㦮ٻⲪ㔲㰖 ⯒ 㩚㏷䞮₆ 㥚䟊 ⧒㯞゚㞞㦮 㒮㠦㍲ <⁎Ⱂ 1>ὒ ṯ 㦖 Ⲫ㔲㰖⯒ 㧛⩻䞮Ⳋ ⧒㯞⻶Ⰲ䕢㧊 4 Ṗ ゚䆮㻮⩒ 㭒 ₆㩗㦒⪲ Eddystone-URL 䕾䌍 Ⲫ㔲㰖⯒ 㩚㏷䞲┺[5]. <⁎Ⱂ 1. ⧒㯞゚㞞 㒮 㧛⩻ Ⲫ㔲㰖> 㧊⯒ 㑮㔶䞮₆ 㥚䟊 ゚䆮 㓺䃦⍞Ṗ 䟊╏ ゚䆮 ㏷㔶 ₆⯒ ⹲ἂ䟞㦚 ἓ㤆 㧊⯒ Ἵ⹪⪲ ㍲⻚㠦 㰞㦮⯒ 䞮㡂 䟊╏ ㍲⻚Ṗ 䕦┾䞮㡂 ㌂㣿㧦㠦Ợ 㞢Ⱂ㧊 䞚㣪䞲 ἓ 㤆 䋊⧒㤆✲ Ⲫ㔲㰫 ㍲゚㓺⯒ 㧊㣿䞮㡂 㞢Ⱂ㦚 㩚㏷ 䞲┺. 䟊╏ ㌂㣿㧦⓪ 㞢Ⱂ㦚 ⹱ἶ 䋊Ⰳ䞮Ⳋ 䟊╏ 㟇 㦮 㧎䎦䔎(intent)⪲ ☯㧧䞮㡂 㞞✲⪲㧊✲ ἆ㩲 㞷䕆゚ 䕆(Activity)⯒ 㔺䟟䞮Ợ ♮Ⳇ, 㧊➢ 㟇㦖 Ὃ㥶 䝚Ⰲ䗒 ⩆㓺(Shared Preference)[6]⯒ 㧓㠊 ㌂㣿㧦⯒ 䔏㩫䞮Ợ ♲┺. 㩚㏷♲ JSON 㩫⽊⯒ 㧊㣿䞮㡂 ㏢′⳾ ⰺ㧻 㩦 㭒⓪ ㌂㣿㧦 ⹿ⶎ㦚 㞢 㑮 㧞㦒Ⳇ, ⰺ㧻 䣢㤦 㩫⽊㢖 ⰺ䃃䞮㡂 ἶṳ㦚 㔳⼚䞶 㑮 㧞┺. <⁎Ⱂ 2>㢖ٻṯ㧊 ἶ ṳὒ ⰺ㧻 Ṛ㠦 ㌗䢎㧧㣿 㔲㓺䎲㦮 ῂ㎇㦚 ㍺Ἒ䞮㡂 ἶṳ㧊 ⰺ㧻㠦 ⹿ⶎ䟞㦚 ➢ <⁎Ⱂ 3>ὒ ṯ㦖 㡞㔲㻮 ⩒ ἶṳ㠦Ợ⓪ 䢮㡗Ⲫ㔲㰖 ⹥ 䡲䌳㦚 JSON 䡫㔳㦒⪲ 㩚㏷䞮㡂 FCM(Firebase Cloud Messaging)[7]㦚 䐋䟊 㩚 ㏷♲ Ⲫ㔲㰖⯒ 㟇㠦㍲ 䢫㧎 䤚 㞢Ⱂ Ⲫ㔲㰖⯒ ⦚㤢㭖 ┺. ⡦䞲 <⁎Ⱂ 4>㢖 ṯ㧊 ⰺ㧻 ὖⰂ㧦㠦Ợ⓪ ἶṳ㩫 ⽊ ⹥ 䐋Ἒ㩫⽊⯒ ⹲㏷䞮㡂 ἶṳ㦚 ὖⰂ䞶 㑮 㧞┺. <⁎Ⱂ 2. ゚䆮㦚 ㌂㣿䞲 ἶṳ ὖⰂ 䝢⨁䙒 ῂ㎇☚>

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<⁎Ⱂ 3. ἶṳ㣿 JSON Ⲫ㔲㰖 㡞㔲> <⁎Ⱂ 4. ⰺ㧻㣿 JSON Ⲫ㔲㰖 㡞㔲> 㧊⯒ 㩚㼊㩗㧎 䦦⯚㦒⪲ 䚲䡚䞮Ⳋ <⁎Ⱂ 5> 㢖 ṯ 㦖 Ⲫ㔲㰖 䦦⯚☚⪲ 䚲䡚䞶 㑮 㧞┺. <⁎Ⱂ 5. Ⲫ㔲㰖 䦦⯚☚> 4. 冶冶嵦 ⽎ ⏒ⶎ㠦㍲⓪ 㧒⹮ ⰺ㧻㠦㍲☚ 㡾⧒㧎 ⰺ㧻ὒ ṯ 㧊 ὧἶ㢖 ἶṳ ὖⰂ⯒ 䞶 㑮 㧞⓪ ⹿⻫㦒⪲ BLE ゚ 䆮㦚 ㌂㣿䞮㡂 ┾㑲 ⹿ⶎὒ 䣢㤦㦚 ⋮⑚㠊 ὖⰂ䞶 㑮 㧞⓪ 䝢⨁䙒㦚 㩲㞞䞮㡖┺. 㩲㞞 䝢⨁䙒㦖 ⰺ㧻㠦㍲ ⓪ ⹿ⶎṳ㠦Ợ ⰺ㧻㠦 ╖䞲 㩫⽊⯒ 㩲Ὃ䞮ἶ, 㟇㦚 䐋䞮㡂 㑮㰧♲ ┾Ⱖ 㩫⽊⯒ 䐋䟊 ┾㑲 ⹿ⶎṳὒ ⰺ㧻 䣢㤦㦚 ῂ⿚㧊 Ṗ⓻䞮┺. 䝢⨁䙒㦚 䐋䞮㡂 㓺Ⱎ䔎䙆 㠦㍲ ⰺ㧻 UUID(Universally Unique Identifier)⯒ ⹱㞚㍲ 㟇㦚 䐋䟊 䟊╏ ⰺ㧻 㩫⽊⯒ 䢫㧎䞮ἶ 䟊╏ ㌂㣿㧦㢖 ⰺ㧻 Ṛ㦮 ὖ⩾㩫⽊⯒ 䢫㧎䞮㡂 䣢㤦㧚㦚 䔏㩫䞾ὒ ☯㔲㠦 ⹿ⶎṳ✺㦮 ☯䟻㦚 䕢㞛䞶 㑮 㧞⓪ ⹿⻫㧊┺. 䟻䤚㠦⓪ ἶṳὒ ⰺ㧻㦚 㡆ἆ䞮⓪ ἆ㩲 㔲㓺䎲 ⡦ ⓪ Ṛ䘎 䗮㧊⯒ 㧊㣿䞲 ἆ㩲㢖 Ⱎ㧒Ⰲ㰖 㩲Ὃ㦚 䐋䞲 Ὃ㥶 ἓ㩲 ⳾◎㦚 㡆ῂ䞮ἶ㧦 䞲┺. 焾処怾竒

[1] JaeKyung Kim, HyeJin Jeong, YuRi Jang, Yun Ji Moon, "Success Factors of O2O(Online-to-Offline) Commerce" Proceedings of the Korean Institute of Information and Commucation Sciences Conference, pp.374 - 377, 2015. [2] Jeon H.S et al., "A Study on Algorithm for Efficient

Location Tracking in Indoor Environment", Journal of information technology applications & management, Vol.13, No.3, 2006, 59-74

[3] Tae-Woo Byeon, Seong-Yong Jang, “A Study on the Technological and Environmental Factors Affecting the Accuracy of Beacon Based Indoor Positioning System”, Journal of the Korea Society for Simulation, Vol. 25, No. 2, pp. 21-29 (2016. 6)

[4] “゚䆮, 㥚䂮₆⹮ ㍲゚㓺㦮 䟋㕂 㧎䝚⧒⪲  ⿖㌗”, 䞲ῃ⹿㏷䐋㔶㩚䕢㰚䦻㤦, 2014.04.04, p31-39

[5] 㾲㭒䢎, ₖ㨂⻪, 㩫☯㰚, “IoT ㌂ⶒ㧎䎆⎍㦚 㥚䞲 ⧒㯞⻶Ⰲ䕢㧊4 㩫㍳”, 㞺㖾⿗, 2019-11

[6] Oglaza, Arnaud; Laborde, Romain; Zarate, Pascale; Benzekri, Abdelmalek; Barrere, Francois, "Difficulties to enforce your privacy preferences on Android? Kapuer will help you", Consumer Communications & Networking Conference (CCNC), 2016 13th IEEE Annual2016 Jan, pp. 315- 316, 2016.

[7] https://firebase.google.com/, 2017.2.

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